CN210949166U - Abrasionproof decreases self priming pump - Google Patents
Abrasionproof decreases self priming pump Download PDFInfo
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- CN210949166U CN210949166U CN201921499764.4U CN201921499764U CN210949166U CN 210949166 U CN210949166 U CN 210949166U CN 201921499764 U CN201921499764 U CN 201921499764U CN 210949166 U CN210949166 U CN 210949166U
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Abstract
The utility model discloses an anti-abrasion self-priming pump, including motor, the pump body and impeller, the motor includes casing, stator, rotor and pivot, and the pivot is connected the impeller, and the impeller is in the impeller chamber of the pump body, the pivot is the step axle, divide into first shaft segment, second shaft segment, third shaft segment and fourth shaft segment that connect gradually, has all formed the step between two adjacent shaft segments, be equipped with the rotor on the third shaft segment, be equipped with the upper bearing on the second shaft segment, be equipped with the lower bearing in the fourth shaft segment, the inner circle of upper bearing, lower bearing leans on respectively on corresponding step, and the bearing groove of casing is placed in to the outer lane of upper bearing, lower bearing; the shaft hole of the impeller is sleeved on the first shaft section, the shaft hole is in clearance fit with the first shaft section, and the impeller can move along the axial direction relative to the rotating shaft in the pump body. The utility model discloses reduce the noise when self priming pump moves, but adopt the impeller floating structure, improve self priming pump's performance, reduction in production cost.
Description
Technical Field
The utility model relates to a water pump field specifically is an abrasionproof decreases self priming pump.
Background
A self-priming pump generally comprises a motor, a pump body and an impeller, wherein the impeller is arranged in the pump body, a rotating shaft of the motor is connected with the impeller, and the impeller and the rotating shaft are in a relatively fixed state. When the self-priming pump is designed, the distance between the end face of the impeller and the inner wall of the pump body is larger than the maximum moving distance of the motor rotating shaft, so that the collision and the friction of the impeller can be avoided; the impeller rotates at a high speed and pressurizes water, a water high-pressure area in the pump body is the periphery of the impeller, and due to the fact that a gap between the impeller and the pump body is enlarged, water in the area easily enters the space of the area where the impeller is located through the gap, and performance of the self-priming pump is reduced.
Disclosure of Invention
The utility model aims to solve the technical problem that a abrasionproof decreases self priming pump is provided, it can solve present self priming pump because the self priming pump structural design that the motor shaft drunkenness leads to is unreasonable, the not good problem of performance.
In order to solve the technical problem, the utility model discloses the technical solution of abrasionproof decreases self priming pump does:
an anti-abrasion self-priming pump comprises a motor, a pump body and an impeller, wherein the motor comprises a shell, a stator, a rotor and a rotating shaft, the rotating shaft is connected with the impeller, the impeller is positioned in an impeller chamber of the pump body, the rotating shaft is a step shaft and is divided into a first shaft section, a second shaft section, a third shaft section and a fourth shaft section which are sequentially connected, the step is formed between the two adjacent shaft sections, the rotor is arranged on the third shaft section, an upper bearing is arranged on the second shaft section, a lower bearing is arranged on the fourth shaft section, inner rings of the upper bearing and the lower bearing respectively lean against the corresponding step, and outer rings of the upper bearing and the lower bearing are arranged in a bearing groove of the shell; the shaft hole of the impeller is sleeved on the first shaft section, the shaft hole is in clearance fit with the first shaft section, and the impeller can move along the axial direction relative to the rotating shaft in the pump body.
The whole shaft hole is in a shape of a superior arch, and the straight surface of the superior arch is provided with an arc groove.
The impeller comprises a base body, a plurality of blades arranged at the outer edge of the base body and a shaft hole arranged at the center of the base body, wherein a plurality of slotted holes which are uniformly distributed in the circumferential direction are arranged between two side faces of the base body in a run-through mode, friction strips are arranged in the slotted holes, two ends of each friction strip protrude out of the two side faces of the base body respectively, and the friction strips are made of plastics.
The impeller includes base member, a plurality of blade of locating base member outer fringe position and locates the shaft hole that the base member central point put, two sides of base member are equipped with the recess combination that each other is symmetrical, the recess combination includes a plurality of arc walls that are the circumference equipartition, and the radius of a plurality of arc walls is unanimous, and installs the arc lug in the arc wall, the arc lug is the plastics material, and the surface protrusion of arc lug in two sides of base member.
The impeller comprises a base body, a plurality of blades arranged at the outer edge of the base body and a shaft hole arranged at the central position of the base body, wherein mounting grooves which are symmetrical to each other are arranged on two side surfaces of the base body and are annular; the mounting grooves are communicated through a plurality of mounting holes which are uniformly distributed on the circumference; a buffer ring matched with the installation groove is installed in the installation groove; the upper end face and the lower end face of the buffer ring respectively protrude out of the two side faces of the base body; supporting columns matched with the mounting holes are mounted in the mounting holes, and the buffer rings are connected through the supporting columns; the buffer ring and the support column are made of plastic materials.
The buffer ring and the support column are integrally formed; an I shape is formed between the buffer ring and the support column.
A plurality of rolling beads are uniformly distributed on the circumference of the buffer ring.
The utility model discloses the technological effect that can reach is:
compared with the prior art, the utility model discloses an abrasionproof decreases self priming pump, the shaft hole of impeller is clearance fit with the pivot of motor, thus, the relative pivot of impeller is floatable state, when self priming pump operation, axial drunkenness takes place for the pivot, can not drive the impeller along axial displacement, also can guarantee simultaneously that the impeller has circumferential direction rotary motion along with the pivot, thereby reduce the overall size of the pump body, reduce the interval between pump body inner wall and the impeller both sides face, improve the performance of water pump, when the impeller is floated, the both sides face of base member probably takes place friction collision with the inner wall of the pump body, so, set up friction strip or arc lug or cushion ring at the both sides face of base member, and all adopt the plastics material, reduce the noise of friction collision, improved the stand wear ability of impeller;
compared with the prior art, the utility model discloses an abrasionproof decreases self priming pump, the whole excellent bow-shaped that is in the shaft hole is equipped with the circular arc groove on the straight face of excellent bow-shaped, has improved the transmission stability between impeller and the pivot.
Compared with the prior art, the utility model discloses an abrasionproof decreases self priming pump, the inner circle of upper bearing, lower bearing leans on respectively on the step that corresponds, and the bearing inslot of casing is arranged in to the outer lane of upper bearing, lower bearing, can reduce the axial float phenomenon of pivot.
Drawings
The invention will be described in further detail with reference to the following drawings and detailed description:
FIG. 1 is a perspective view of the wear resistant self-priming pump of the present invention;
FIG. 2 is a cross-sectional view of the wear resistant self-priming pump of the present invention;
FIG. 3 is a partial cross-sectional view of the impeller and shaft of the wear resistant self-priming pump of the present invention;
FIG. 4 is a schematic structural view of a rotating shaft of the anti-wear self-priming pump of the present invention;
FIG. 5 is a perspective view of a first embodiment of an impeller of the wear resistant self-primer pump of the present invention;
FIG. 6 is an exploded perspective view of a second embodiment of an impeller of the wear resistant self-primer pump of the present invention;
fig. 7 is an exploded perspective view of a third embodiment of the wear resistant self-primer pump of the present invention;
fig. 8 is an exploded perspective view of a third embodiment of the wear resistant self-priming pump of the present invention with support posts.
Detailed Description
As shown in fig. 1 to 8, the utility model provides an abrasion-proof self-priming pump, including motor 1, the pump body 2 and impeller 3, motor 1 includes casing 4, stator 5, rotor 6 and pivot 7, and pivot 7 connects impeller 3, and impeller 3 is in the impeller chamber of the pump body 2, pivot 7 is the step axle, divide into first shaft segment 8, second shaft segment 9, third shaft segment 10 and fourth shaft segment 11 that connect gradually, has all formed step 12 between two adjacent shaft segments, be equipped with rotor 6 on the third shaft segment 10, be equipped with upper bearing 13 on the second shaft segment 9, be equipped with lower bearing 14 on the fourth shaft segment 11, the inner circle of upper bearing 13, lower bearing 14 leans on corresponding step 12 respectively, and the bearing groove 15 of casing 4 is arranged in to the outer lane of upper bearing 13, lower bearing 14; the shaft hole 16 of the impeller 3 is sleeved on the first shaft section 8, the shaft hole 16 and the first shaft section 8 are in clearance fit, and the impeller 3 can axially displace relative to the rotating shaft 7 in the pump body 2.
The shaft hole 16 is in a shape of a major arch as a whole, and an arc groove 17 is arranged on the straight surface of the major arch.
As shown in fig. 5, the impeller 3 includes a base 18, a plurality of blades 19 disposed at an outer edge of the base 18, and a shaft hole 16 disposed at a center of the base 18, a plurality of circumferentially and uniformly distributed slots (not labeled) are disposed between two side surfaces of the base 18, a friction strip 21 is disposed in each slot (not labeled), two ends of each friction strip 21 respectively protrude from two side surfaces of the base 18, and the friction strip 21 is made of plastic.
The plurality of friction strips 21 form a circular track and accord with the positions of two side surfaces of the impeller 3 and the inner wall of the pump body 2 when in contact friction, and the noise is reduced.
The utility model discloses an impeller has still the second kind of embodiment, as shown in fig. 6, impeller 3 includes base member 18, a plurality of blade 19 of locating 18 outer fringe positions of base member and locates the shaft hole 16 that 18 central point of base member put, two sides of base member 18 are equipped with the recess combination that each other is symmetrical, the recess combination includes a plurality of arc walls 22 that are the circumference equipartition, and a plurality of arc walls 22's radius is unanimous, and installs arc lug 23 in arc wall 22, arc lug 23 is the plastics material, and arc lug 23's surface protrusion in two sides of base member 18.
The arc-shaped convex blocks 23 form a circular track and accord with the positions of two side surfaces of the impeller 3 when the two side surfaces of the impeller are in contact friction with the inner wall of the pump body 2, and noise is reduced.
The impeller of the present invention has a third embodiment, as shown in fig. 7 and 8, the impeller 3 includes a base 18, a plurality of blades 19 disposed at the outer edge of the base 18, and a shaft hole 16 disposed at the center of the base 18, wherein two side surfaces of the base 18 are provided with mounting grooves 24 that are symmetrical to each other, and the mounting grooves 24 are annular; the mounting grooves 24 are communicated through a plurality of mounting holes 25 which are uniformly distributed on the circumference; a buffer ring 26 matched with the installation groove 24 is installed in the installation groove; the upper end surface and the lower end surface of the buffer ring 26 respectively protrude out of the two side surfaces of the base body 18; a supporting column 27 matched with the mounting hole 25 is mounted in the mounting hole, and the buffer rings 26 are connected through the supporting column 27; the cushion ring 26 and the support posts 27 are both made of plastic material.
The buffer ring 26 and the support column 27 are integrally formed; the buffer ring 26 and the support column 27 are in an I shape.
Because the outer end face of the buffer ring 26 protrudes out of the side face of the base body 18 of the impeller 3, when the impeller 3 is close to the inner wall of the pump body, the buffer ring 26 can replace the surface of the impeller 3 to contact with the inner wall of the pump body 2, the buffer ring 26 is made of plastic material, when the buffer ring 26 contacts with the pump body made of metal, the buffer ring 26 can easily bear the friction contact of the pump body 2 by using the wear-resisting property of the plastic material, so that the strong and harsh noise generated by metal and metal friction is avoided, and the buffer rings 26 are connected through the support columns 27, the strength of the buffer ring can be effectively improved due to the support columns 27, and the service life of the buffer ring 26 is prolonged.
Cushion ring 26 and support column 27 integrated into one piece, can improve cushion ring 26's intensity in the at utmost, and do benefit to support column 27 and transmit power, the cushion ring 26 that makes both sides can undertake the pressure that the other side bore each other, guarantee cushion ring 26's life, and be the I shape between cushion ring 26 and the support column 27, support column 27 at this moment plays the effect of bridging, the removal that makes both sides cushion ring 26 all receives restriction each other, consequently, cushion ring 26 can not appear and breaks away from the condition of mounting groove 24, guarantee impeller 3's performance.
A plurality of rolling beads 28 are uniformly distributed on the buffer ring 26 in the circumferential direction, and the rolling beads 28 are made of plastic, so that the running smoothness of the impeller 3 when the impeller generates friction relative to the pump body 2 is improved.
The following is right the working principle of the anti-abrasion self-priming pump of the utility model is explained:
the utility model discloses an abrasionproof decreases self priming pump, pivot 7 is the step axle, and set up upper bearing 13, lower bearing 14 in two step positions in the front and back, upper bearing 13, lower bearing 14 are fixed with the casing of motor 1 respectively, so, the axial float phenomenon of pivot 7 alleviates, simultaneously, make the shaft hole 16 of impeller 3 be greater than the external diameter of first shaft section 8, so, impeller 3 can be along axial displacement relative to pivot 7, when pivot 7 drives impeller 3 high-speed rotation, the axial float of pivot 7 no longer drives impeller 3 along axial displacement, impeller 3 rotates along with rotating high-speed, and impeller 3 self has the floating distance in pump body 2 along the axial, thereby make the size of pump body 2 can process for present and get littleer, production cost is reduced, and reduced the interval between impeller 3 both ends face and the pump body 2 inner wall, thereby avoid the high-pressure water in the pump body 2 to get into impeller 3 position, the high-pressure water is always positioned at the position of the blade 19 of the impeller 3; the utility model discloses set up the plastic pellet in impeller 3 and the position of the 2 collision friction of the pump body very much, reduce the noise that collision friction produced between impeller 3 and the pump body 2.
The above detailed description is made on the anti-abrasion self-priming pump provided by the embodiment of the present invention, and the specific examples are applied herein to explain the principle and the implementation manner of the present invention, and the description of the above embodiments is only used to help understand the technical solution disclosed by the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (7)
1. The utility model provides an abrasionproof decreases self priming pump, includes the motor, the pump body and impeller, the motor includes casing, stator, rotor and pivot, and the impeller is connected in the pivot, and the impeller is in the impeller chamber of the pump body, its characterized in that: the rotating shaft is a step shaft and is divided into a first shaft section, a second shaft section, a third shaft section and a fourth shaft section which are sequentially connected, a step is formed between every two adjacent shaft sections, a rotor is arranged on the third shaft section, an upper bearing is arranged on the second shaft section, a lower bearing is arranged on the fourth shaft section, inner rings of the upper bearing and the lower bearing respectively lean against the corresponding step, and outer rings of the upper bearing and the lower bearing are arranged in a bearing groove of the shell; the shaft hole of the impeller is sleeved on the first shaft section, the shaft hole is in clearance fit with the first shaft section, and the impeller can move along the axial direction relative to the rotating shaft in the pump body.
2. The wear resistant self-primer pump of claim 1 wherein: the whole shaft hole is in a shape of a superior arch, and the straight surface of the superior arch is provided with an arc groove.
3. The wear resistant self-primer pump of claim 1 or 2 wherein: the impeller comprises a base body, a plurality of blades arranged at the outer edge of the base body and a shaft hole arranged at the center of the base body, wherein a plurality of slotted holes which are uniformly distributed in the circumferential direction are arranged between two side faces of the base body in a run-through mode, friction strips are arranged in the slotted holes, two ends of each friction strip protrude out of the two side faces of the base body respectively, and the friction strips are made of plastics.
4. The wear resistant self-primer pump of claim 1 or 2 wherein: the impeller includes base member, a plurality of blade of locating base member outer fringe position and locates the shaft hole that the base member central point put, two sides of base member are equipped with the recess combination that each other is symmetrical, the recess combination includes a plurality of arc walls that are the circumference equipartition, and the radius of a plurality of arc walls is unanimous, and installs the arc lug in the arc wall, the arc lug is the plastics material, and the surface protrusion of arc lug in two sides of base member.
5. The wear resistant self-primer pump of claim 1 or 2 wherein: the impeller comprises a base body, a plurality of blades arranged at the outer edge of the base body and a shaft hole arranged at the central position of the base body, wherein mounting grooves which are symmetrical to each other are arranged on two side surfaces of the base body and are annular; the mounting grooves are communicated through a plurality of mounting holes which are uniformly distributed on the circumference; a buffer ring matched with the installation groove is installed in the installation groove; the upper end face and the lower end face of the buffer ring respectively protrude out of the two side faces of the base body; supporting columns matched with the mounting holes are mounted in the mounting holes, and the buffer rings are connected through the supporting columns; the buffer ring and the support column are made of plastic materials.
6. The wear resistant self-primer pump of claim 5 wherein: the buffer ring and the support column are integrally formed; an I shape is formed between the buffer ring and the support column.
7. The wear resistant self-primer pump of claim 6 wherein: a plurality of rolling beads are uniformly distributed on the circumference of the buffer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921499764.4U CN210949166U (en) | 2019-09-10 | 2019-09-10 | Abrasionproof decreases self priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921499764.4U CN210949166U (en) | 2019-09-10 | 2019-09-10 | Abrasionproof decreases self priming pump |
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| Publication Number | Publication Date |
|---|---|
| CN210949166U true CN210949166U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921499764.4U Active CN210949166U (en) | 2019-09-10 | 2019-09-10 | Abrasionproof decreases self priming pump |
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|---|---|
| CN (1) | CN210949166U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454407A (en) * | 2019-09-10 | 2019-11-15 | 浙江日井泵业股份有限公司 | A kind of anti-wear self priming pump |
-
2019
- 2019-09-10 CN CN201921499764.4U patent/CN210949166U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454407A (en) * | 2019-09-10 | 2019-11-15 | 浙江日井泵业股份有限公司 | A kind of anti-wear self priming pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 318050 No. 41 Middle Road, park, fengjiang street, Luqiao District, Taizhou City, Zhejiang Province (Zhejiang rijing Pump Co., Ltd.) Patentee after: ZHEJIANG RIJING PUMP Co.,Ltd. Address before: 333 Xinliu Road, Xinqiao Town, Luqiao District, Taizhou City, Zhejiang Province Patentee before: ZHEJIANG RIJING PUMP Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |